This boy was the only child I saw at the races. He was there with some older boys (most likely brothers or cousins) and felt very important to be able to get the robot (and probably just to be there!). Unfortunately his robot was white, so it is hard to see.
The 'jockeys' sit on a black rubber plate on the colored deck on the camel. You can see that clearly too in this photo.
The boy was running to get back to the car. That was fun to watch because at the fence he handed the robot to an older boy and had to jump over the lower part (the red bar at elbow-height you see behind him), which was a skill in itself with his dishdasha.